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Kernel source tree for Raspberry Pi-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://forums.raspberrypi.com/
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5.4.59-v7l+ #1337 Can't overclock over 2000mhz anymore #3823

Open myzar opened 4 years ago

myzar commented 4 years ago

I've upgraded to this kernel hoping to fix my m2 ssd disconnecting randomly introduced in latest stable kernel released few days ago. That is fixed but with this kernel i can't overclock over 2000mhz , anything above that is refused and the cpu is stuck at 600169920

relevant logs:

[ 1.134005] cpufreq: cpufreq_online: CPU0: Running at unlisted freq: 2100000 KHz [ 1.134076] cpufreq: cpufreq_online: CPU0: Unlisted initial frequency changed to: 2294967 KHz

[ 1.124136] cpufreq: cpufreq_online: CPU0: Running at unlisted freq: 2147000 KHz [ 1.124206] cpufreq: cpufreq_online: CPU0: Unlisted initial frequency changed to: 2294967 KHz

pi@retropie:/sys/devices/system/cpu/cpu0/cpufreq $ uname -a Linux retropie 5.4.59-v7l+ #1337 SMP Wed Aug 26 11:03:21 BST 2020 armv7l GNU/Linux

pi@retropie:/sys/devices/system/cpu/cpu0/cpufreq $ cat ./scaling_available_frequencies 2294967 pi@retropie:/sys/devices/system/cpu/cpu0/cpufreq $ cat ./cpuinfo_max_freq 2294967

pi@retropie:/sys/devices/system/cpu/cpu0/cpufreq $ cat ./scaling_max_freq 2294967 pi@retropie:/sys/devices/system/cpu/cpu0/cpufreq $ cat ./scaling_available_governors conservative ondemand userspace powersave performance schedutil pi@retropie:/sys/devices/system/cpu/cpu0/cpufreq $ cat ./scaling_governor performance pi@retropie:/sys/devices/system/cpu/cpu0/cpufreq $ vcgencmd measure_clock arm frequency(48)=600169920

Titaniumtown commented 4 years ago

I have an issue like this, I just reboot a few times, and it works. It's super weird. It just doesn't boost, not even to 1.5ghz, it just gets stuck at 666mhz, I set the governor to performance, but it still doesn't boost.

popcornmix commented 4 years ago

Can you both report output of:

vcgencmd version
uname -a
cat /proc/cpuinfo | grep 'Revision'

and show your modified config.txt settings. @Titaniumtown are you using PiOS (raspbian) or retropie?

Titaniumtown commented 4 years ago

I'm using arch linux arm (but I'm using the raspberry pi config used to build the kernel). I switched to kernel 5.8, and it works fine.

myzar commented 4 years ago

Aug 24 2020 18:50:56 Copyright (c) 2012 Broadcom version 8d19c1935e67d8ac2fe87c639d4e8b8ef250813b (clean) (release) (start)

Linux retropie 5.4.59-v7l+ #1337 SMP Wed Aug 26 11:03:21 BST 2020 armv7l GNU/Linux

Revision : c03112

over_voltage=6 v3d_freq=750 arm_freq=2150 avoid_pwm_pll=1 hdmi_enable_4kp60=1 dtoverlay=disable-bt dtoverlay=disable-wifi

I'm using retropie , it used to happen randomly with the old 5.4.51+ like one in ten , but with this it happens always

arm_freq=2000 works fine , anything above fails and the cpu gets stuck @ 600169920

Titaniumtown commented 4 years ago

@popcornmix I can send you the output of those commands later, I am doing school rn.

popcornmix commented 4 years ago

@myzar can you confirm if the issue started with the firmware or kernel being updated? (I don't really know what is in "Linux retropie 5.4.59-v7l+", but I do know what changed in latest firmware).

myzar commented 4 years ago

@popcornmix I've use rpi-update yesterday i think it updated the kernel only because i see /lib/firmware/raspberrypi/bootloader/beta/pieeprom-2020-07-31.bin . I did that hoping to fix my m2 ssd disconnecting when my wifi dongle was heavily used, and it indeed fixed that but then i noticed the cpu being stuck @600mhz

popcornmix commented 4 years ago

There's more than one meaning for firmware, but in relation to rpi-update it is the start*.elf/fixup*.dat files (and version returned from vcgencmd version). There have been changes related to arm clocking in both firmware and kernel recently. If uname returns "Linux retropie 5.4.59-v7l+" then rpi-update didn't update the kernel. are there "kernel=" lines in config.txt?

myzar commented 4 years ago

@popcornmix it updated kernel for sure , kernel is ver linux-31d197d1b31942d46d882732447485737c69072a i had to use rpi get source to compile the wifi module and the joypad manually because the old modules wouldn't work with the ver change , previous kernel was 5.4.51+ , i've deleted the old dirs manually so i'm 200% sure it updated the kernel

popcornmix commented 4 years ago

Ah yes, that kernel build number does match rpi-update. Getting thrown off by the retropie hostname.

myzar commented 4 years ago

to be even more specific

[ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 5.4.59-v7l+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1337 SMP Wed Aug 26 11:03:21 BST 2020

Titaniumtown commented 4 years ago

On kernel 5.8, I just got the same issue. I guess it came back, lol.

popcornmix commented 4 years ago

rpi-update firmware has a fix for this - please test.

Titaniumtown commented 4 years ago

Ok, thanks! When I get time to test, I will make sure to! :)

myzar commented 4 years ago

fixed vcgencmd measure_clock arm frequency(48)=2150507776

Titaniumtown commented 4 years ago

@myzar reboot a few times and make sure, bc before this firmware update (haven't tested yet) it was a random thing.

Titaniumtown commented 4 years ago

I am still getting this issue, this is super annoying.

popcornmix commented 4 years ago

@Titaniumtown I believe this issue is fixed. Are you using initial_turbo? Might this be your issue? https://github.com/raspberrypi/firmware/issues/1469

Titaniumtown commented 4 years ago

I am not using initial_turbo

popcornmix commented 4 years ago

You'll have to explain your issue. The issue reported here has been confirmed fixed by the author. Your use case is different and you haven't explained it.

Ideally show the minimum changes to config.txt and commands run to show the issue in a standard RPiOS image.